For a first Glance it's an pretty solid Idea, and very well executed so far, but as soon you hit an World-Reset, it all falls apart a bit, even with the Boost from Idols, you still have to Idle the same amount of Time, as you needed the First Run, because the Bonus provided from the Idols is nothing compared to the Bonus from the Shards, so I have to Wait to get the same amount of Shards I had on my first run, that take 5H each, to actually proceed further Based on my Bonus from the Idols, that does not feel like Progress at all, sure the Idols are good for the early Game, but if you hit the exact same wall again, because you miss something that you literally have to wait for 30H+, it does not at to the Fun of the Game...
So I really hope you find a Way and Mechanic that feels like Progress on an World-Reset, stead of having on wait for something one can't affect, it really is an great take on the Idle Genre!